kaal:position:2026-07-31-1686

Privacy-Preserving Blockchain Mining: Sybil-resistance by Proof-of-Useful-Work should be assessed against Kaal's source-bound claim that Bitcoin proved that a decentralized peer to peer network can manage valuable assets without a central authority, but the centralizing force of competition concentrated power anyway, as economies of scale produced large mining farms in place of millions of individual members maintaining the ledger. The current metadata indicates a plausible connection through Sybil resistance, but the defensible response is a qualification until the source text confirms agreement, scope, methods, and limitations.

• applies to proof of work networks where mining rewards create economies of scale
• External evidence level: abstract indexed.
• Mapping review tier: mapping review before claim review.
• The literature-to-claim mapping remains explicitly ambiguous and should not be treated as a settled equivalence.

Privacy-Preserving Blockchain Mining: Sybil-resistance by Proof-of-Useful-Work

kaal:claim:3782198-024
Craig Calcaterra, Wulf A. Kaal, Contemporary Decentralization (2021). SSRN: https://ssrn.com/abstract=3782198
Source PDF sha256: e7e1378e3eed06cace6534e7792a7307d607d18bc6beb4ac45896476280728e4

Evidence: abstract indexed
Review tier: mapping review before claim review
Mapping confidence: 0.281
Mapping ambiguous: true

tokenomicsdecentralizationeconomicsconsensus-and-security

Affirmed in historical-backfill:2026-07-31:phase-0007 on 2026-07-31. Review record.

Canonical markdown sha256: f2d21773a2be3d8e3b537e8de232a4db70f193c21c291afe256b044557eea6bc
curl -s https://wulfkaal.github.io/positions/2026-07-31-1686.md | sha256sum